Investigation of Precipitation in a Aging Hardened Plastic Mould Steel

Yi Luo; Xiao Chun Wu

doi:10.4028/www.scientific.net/AMR.528.152

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 528Investigation of Precipitation in a Aging Hardened...

Investigation of Precipitation in a Aging Hardened Plastic Mould Steel

Abstract:

The aging hardened plastic mould steel 10Ni3MnCuAl after aging at 510 °C is investigated by scanning electron microscope (SEM), transmission electronic microscope (TEM) and three dimensional atom probe (3DAP). The results show that its microstructure is granular bainite after soluted. Its aging hardening is mainly due to the precipitation of a high density, nanoscale and fully coherent NiAl precipitation with the B2 structure for 4 h. Clusters associated precipitates from 3DAP results show that its aging hardening derives from multicomponent precipitate containing Fe, Ni, Al, Mn and Cu, and concentration of Fe decreases with the aging time, while that of Ni, Al, Mn and Cu are opposite, and the ratio between Ni and Al are roughly 1.

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Periodical:

Advanced Materials Research (Volume 528)

Pages:

152-155

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.528.152

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Online since:

June 2012

Authors:

Yi Luo, Xiao Chun Wu

Keywords:

3DAP, Aging Hardened Steel, Precipitate, TEM

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